Would this work using trigger node? (tested only quickly but does was @krambriw suggested above)
[{"id":"a9682048.d1fef","type":"inject","z":"bf210454.b85538","name":"","props":[{"p":"payload"},{"p":"topic","vt":"str"}],"repeat":"","crontab":"","once":false,"onceDelay":0.1,"topic":"","payload":"open","payloadType":"str","x":90,"y":140,"wires":[["6664e7b7.ccf068"]]},{"id":"7319e2e7.1324bc","type":"debug","z":"bf210454.b85538","name":"","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"false","statusVal":"","statusType":"auto","x":410,"y":180,"wires":[]},{"id":"575223cd.9cecfc","type":"inject","z":"bf210454.b85538","name":"","props":[{"p":"payload"},{"p":"topic","vt":"str"}],"repeat":"","crontab":"","once":false,"onceDelay":0.1,"topic":"","payload":"close","payloadType":"str","x":90,"y":220,"wires":[["6664e7b7.ccf068"]]},{"id":"6664e7b7.ccf068","type":"trigger","z":"bf210454.b85538","name":"","op1":"","op2":"DOOR ALARM","op1type":"str","op2type":"str","duration":"5","extend":false,"units":"s","reset":"close","bytopic":"all","topic":"topic","outputs":2,"x":240,"y":180,"wires":[[],["7319e2e7.1324bc"]]}]
I've setup the same thing for our freezer as my girlfriend often fails to close it properly. A Pushover message is then sent to both of our phones. 
